Just got AQ Niagara 1200 ...

Probably a good time to get the niagara 1000 on the used market.

Can't recommend a PSA regenerator in place of the Niagara. Others might disagree. Sold mine because although it had some cleanup ability I thought it sounded too "artificial" and went back to my Blue Circle conditioner.

The answer is a big YES if I were you. I've been putting gear together for years and learning as I go. I've got gear now that I love (I gone basically the tubed route) but I've also learned lately that things like power cords and interconnects can make a huge difference. And it is more expensive. But audition power cords, for instance, and take your time and compare. Half my gear I've changed over to aftermarket cables (after auditioning) and the music is quieter, blacker background, etc. Try it. Don't listen to people who say it's a waste of money. There is a difference. Just take your time and judge for yourself. I did and I'm much happier with the results.

I just replaced my Richard Gray's 400 Pro with the Niagara 1200. Stunned by the difference it made. I had the NRG-Z3 but switched to a Nordost Red Dawn. The Red Dawn is different from the NRG (to me) but not in a good or bad way really. One song sounded brighter but the other two sounded clearer. The Niagara is still breaking in so this may be a moot point for now but these tweaks do make a difference for sure.

If it were me I'd stick with the Niagara.I used to have PS Audio and it created noise issues rather than helping.